package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.SetmealEnableFailedException;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import com.sky.vo.SetmealVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import java.sql.SQLException;
import java.util.List;
import java.util.function.Consumer;


@Service
@Slf4j
public class SetmealServiceImpl implements SetmealService {

    @Resource
    private SetmealMapper setmealMapper;
    @Resource
    private SetmealDishMapper setmealDishMapper;
    @Resource
    private DishMapper dishMapper;

    @Override
    public PageResult findByPage(SetmealPageQueryDTO setmealPageQueryDTO) {
        PageHelper.startPage(setmealPageQueryDTO.getPage(),setmealPageQueryDTO.getPageSize());
        List<SetmealVO> list = setmealMapper.selectByPage(setmealPageQueryDTO);
        Page<SetmealVO> page = (Page<SetmealVO>) list;
        PageResult pageResult = new PageResult();
        pageResult.setTotal(page.getTotal());
        pageResult.setRecords(page.getResult());
        return pageResult;
    }

    @Override
    @Transactional(rollbackFor = SQLException.class)
    public Integer addSermeal(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO,setmeal);
        Integer tage = setmealMapper.insertSetmeal(setmeal);

        Long setmealId = setmeal.getId();

        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        setmealDishes.forEach(setmealDish -> {
            setmealDish.setSetmealId(setmealId);
            setmealDishMapper.insertDishSetmal(setmealDish);
        });
        return tage;
    }

    @Override
    @Transactional(rollbackFor = SQLException.class)
    public Integer removeById(List<Long> ids) {
        Integer tage = setmealMapper.deleteById(ids);
        setmealDishMapper.deleteById(ids);
        return tage;
    }

    @Override
    public SetmealVO findById(Long id) {
        SetmealVO setmealVO = new SetmealVO();
        setmealVO = setmealMapper.selectById(id);
        setmealVO.setSetmealDishes(setmealDishMapper.selectById(id));
        return setmealVO;
    }

    @Override
    @Transactional(rollbackFor = SQLException.class)
    public Integer xiugaiSetmeal(SetmealDTO setmealDTO) {
        SetmealVO setmealVO = new SetmealVO();
        BeanUtils.copyProperties(setmealDTO,setmealVO);
        Integer tage = setmealMapper.updateSetmeal(setmealVO);
        Long setmealId = setmealDTO.getId();
        setmealDishMapper.deleteBySetmealId(setmealId);
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        setmealDishes.forEach(setmealDish -> {
            setmealDish.setSetmealId(setmealId);
            setmealDishMapper.insertDishSetmal(setmealDish);
        });
        return tage;
    }

    @Override
    public Integer startOrStop(Integer status, Long id) {
        if (status == StatusConstant.ENABLE){
           List<Dish> dishList = dishMapper.selectSetmeal(id);
           if (dishList != null && dishList.size()>0){
               dishList.forEach(new Consumer<Dish>() {
                   @Override
                   public void accept(Dish dish) {
                       if (StatusConstant.DISABLE == dish.getStatus()){
                           throw new
                                   SetmealEnableFailedException(MessageConstant.SETMEAL_ENABLE_FAILED);
                       }
                   }
               });
           }
        }
        Setmeal setmeal = Setmeal.builder()
                .id(id)
                .status(status)
                .build();
        return setmealMapper.update(setmeal);
    }
    /**
     * 条件查询
     * @param setmeal
     * @return
     */
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }

    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }
}
